Does IP11 flood?

Yes — parts of the IP11 district carry real flood risk: 16 of its 166 at-risk postcodes reach the Environment Agency's High likelihood band. The IP11 postcode district covers Eastern Felixstowe, Western Felixstowe, Orwell & Villages, close to Harwich, and surrounding villages in Essex.

166 postcodes in the IP11 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 16 high, 5 medium, 92 low, 53 very low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

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Which IP11 postcodes are at risk?

IP11 0SD up to High IP11 0SE up to High IP11 2AB up to High IP11 2AD up to High IP11 2AQ up to High IP11 2EL up to High IP11 2GE up to High IP11 2TS up to High IP11 3TW up to High IP11 7RZ up to High IP11 9RG up to High IP11 9RQ up to High IP11 9RX up to High IP11 9RY up to High IP11 9RZ up to High IP11 9SA up to High IP11 2AE up to Medium IP11 2GD up to Medium IP11 2GH up to Medium IP11 2GJ up to Medium IP11 4HF up to Medium IP11 2AF up to Low IP11 2AU up to Low IP11 2BB up to Low IP11 2BF up to Low IP11 2BG up to Low IP11 2BL up to Low IP11 2BN up to Low IP11 2BP up to Low IP11 2BS up to Low IP11 2BW up to Low IP11 2DA up to Low IP11 2DD up to Low IP11 2DE up to Low IP11 2DG up to Low IP11 2DJ up to Low IP11 2DL up to Low IP11 2DQ up to Low IP11 2DR up to Low IP11 2DU up to Low IP11 2DY up to Low IP11 2DZ up to Low IP11 2EA up to Low IP11 2EB up to Low IP11 2ED up to Low IP11 2EE up to Low IP11 2EF up to Low IP11 2EG up to Low IP11 2EN up to Low IP11 2ES up to Low IP11 2ET up to Low IP11 2EU up to Low IP11 2EW up to Low IP11 2EX up to Low IP11 2EY up to Low IP11 2FS up to Low IP11 2GA up to Low IP11 2GB up to Low IP11 2GF up to Low IP11 2GG up to Low IP11 2HA up to Low IP11 2HB up to Low IP11 2HE up to Low IP11 2HL up to Low IP11 2HN up to Low IP11 2HP up to Low IP11 2HR up to Low IP11 2HS up to Low IP11 2HT up to Low IP11 2HW up to Low IP11 2JB up to Low IP11 2QE up to Low IP11 2QN up to Low IP11 2QX up to Low IP11 2TD up to Low IP11 2TP up to Low IP11 3AJ up to Low IP11 3AL up to Low IP11 3BH up to Low IP11 3BQ up to Low IP11 3EA up to Low IP11 3GA up to Low IP11 3GB up to Low IP11 3GD up to Low IP11 3GE up to Low IP11 3GG up to Low IP11 3HH up to Low IP11 3JB up to Low IP11 3QW up to Low IP11 3RF up to Low IP11 3RS up to Low IP11 3RX up to Low IP11 3SA up to Low IP11 3SB up to Low IP11 3SD up to Low IP11 3SE up to Low IP11 3SF up to Low IP11 3SH up to Low IP11 3SN up to Low IP11 3SS up to Low IP11 3ST up to Low IP11 3SU up to Low IP11 3SY up to Low IP11 3TG up to Low IP11 3TL up to Low IP11 3TX up to Low IP11 3TZ up to Low IP11 3UT up to Low IP11 3UU up to Low IP11 3UY up to Low IP11 7LR up to Low IP11 7LT up to Low IP11 7LU up to Low IP11 2AH up to Very low IP11 2AJ up to Very low IP11 2AN up to Very low IP11 2AP up to Very low IP11 2AR up to Very low IP11 2AS up to Very low IP11 2AT up to Very low IP11 2AW up to Very low IP11 2AX up to Very low IP11 2AY up to Very low IP11 2AZ up to Very low IP11 2BA up to Very low IP11 2BD up to Very low IP11 2BE up to Very low IP11 2BH up to Very low IP11 2BJ up to Very low IP11 2BQ up to Very low IP11 2BT up to Very low IP11 2BX up to Very low IP11 2BY up to Very low IP11 2BZ up to Very low IP11 2DB up to Very low IP11 2DF up to Very low IP11 2DH up to Very low IP11 2DN up to Very low IP11 2DP up to Very low IP11 2DS up to Very low IP11 2DT up to Very low IP11 2DW up to Very low IP11 2EJ up to Very low IP11 2EP up to Very low IP11 2FU up to Very low IP11 2GL up to Very low IP11 2GN up to Very low IP11 2HU up to Very low IP11 2NH up to Very low IP11 3AG up to Very low IP11 3BL up to Very low IP11 3HE up to Very low IP11 3HG up to Very low IP11 3HQ up to Very low IP11 3HX up to Very low IP11 3HZ up to Very low IP11 3TY up to Very low IP11 4AG up to Very low IP11 4AZ up to Very low IP11 4BB up to Very low IP11 4HQ up to Very low IP11 4HU up to Very low IP11 4SS up to Very low IP11 4ST up to Very low IP11 4XA up to Very low IP11 8TN up to Very low

Rivers and flooding history near IP11

The rivers that matter here, each monitored live on FloodRadar:

383 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (70 at warning level or above), most recently 28 September 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in IP11? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

IP10 IP12 IP13 IP9 IP14 IP8 IP15 IP7

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.